Hydro Flask Standard Mouth Sports Cap - Black

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$16.95
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From mountain trails to morning yoga class, our Standard Mouth Insulated Sport Cap lets you hydrate one-handed and on the fly. It?s the first insulated sport cap specifically designed to keep water in your Hydro Flask bottle ice cold, sip after sip.

Please note: This lid is not leak proof.

Product Benefits

Compatible with all Standard Mouth bottles
Insulated for enhanced temperature protection
Quiet, "no whistle" valve
BPA-Free and Phthalate-Free